Lock-In Thermography (DLIT / ILIT)

Fig. 1: DLIT thermograph of shunts at laser scribes in an a-Si thin film solar cell (on the right: photomicrograph of the individual spots) [S. Kühnapfel]

Fig. 2: ILIT thermograph of an a-Si/µc-Si mini module (illumination l=528 nm and 850 nm, JSC condition) [N. Krishnan]